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Apple 20th Anniversary Macintosh Specs

All 20th Anniversary Models | All 1997 Models | Dynamically Compare This Mac to Others

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20th Anniversary MacThe unique Apple 20th Anniversary Macintosh, based on an internal design similar to the Gazelle architecture, features a 250 MHz PowerPC 603e processor, 32 MB of RAM, a 2.0 GB hard drive, a vertically oriented 4X CD-ROM drive, an ATI 3D RAGE II graphics processor with 2 MB of SGRAM, S-video input, TV/FM Radio capability, and a custom Bose speaker system all packed in a custom, one-of-a-kind case.

The 20th Anniversary Mac shipped with a unique keyboard with an integrated trackpad and Italian leather palm rest as well as a large external Bose subwoofer.

To purchase or upgrade a vintage Mac -- and newer Macs -- see site sponsor OHS.

  • Tech Specs
  • Ports

Click on the category for related details. The most commonly needed info is "open" by default, but all info is important.

March 20, 1997 March 14, 1998
Details: The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

Also see: All Macs introduced in 1997.
250 MHz PowerPC 603e
Details: This model has a 32-bit processor and a 64-bit data path.
Third-Party* Integrated
Details: *A variety of third-party processor upgrades and accelerators were available.
50 MHz N/A
Details: N/A
Macintosh ROM 4 MB
Details: N/A
32k 256k
Details: N/A
168-pin DIMM 60 ns
Details: Supports two 5V 60 ns 168-pin EDO/FPM DIMMs.
32 MB 128 MB
Details: Supports a maximum of 128 MB of RAM with two 64 MB memory modules.

Also see: Actual Max RAM of All G3 & Later Macs.
None 2
Details: RAM cannot be interleaved to improve performance.
3D Rage II Dedicated SGRAM*
Details: *ATI 3D Rage II video processor provides 2 MB of dedicated SGRAM.
2 MB 2 MB
Details: N/A
12.1" Color* 800x600
Details: 12.1" color active-matrix (16-bit, thousands of colors) TFT LCD.
Single Display* Variable*
Details: *This model can support a second display with the addition of a PCI video card. By default, it only supports a single display.
2.0 GB IDE
Details: By default, this model is configured with a 2.0 GB internal IDE hard drive. It does not support an internal SCSI hard drive.
4X CD-ROM 1.44 MB (Manual)
Details: The 20th Anniversary Macintosh has a unique, front-mounted, vertically oriented 4X CD-ROM drive.
33.6k (Internal) None
Details: N/A
1 PCI, Comm II* None
Details: *This model has a single 7" PCI slot as well as a Comm II slot that is occupied by default with an internal 33.6k modem.
All-in-One 20th Anniversary Mac
Details: N/A
M3459LL/A 20th Anniversary Mac
Details: N/A
N/A 512
Details: This Gestalt ID is specific to this model.

Also see: All Macs with the N/A Model Number and 512 Gestalt ID.

For more about identifiers and how to locate them on modern Macs, please refer to's Mac Identification section.
4.5V Alkaline N/A
Details: N/A
7.6.1 7.6.1-9.1
Details: Earlier and later versions of the Macintosh System/Finder and Mac OS are not supported.

For systems capable of running older versions of the Mac OS -- as well as modern ones -- please see site sponsor OHS. OHS specializes in heavily upgraded Macs capable of running both Mac OS X and Mac OS 9 applications.
17.25 x 16.5 x 10 14.9 lbs (6.8 kg)
Details: In inches - height by width by depth, (43.8 cm, 41.9 cm, 25.4 cm).
US$7499 N/A*
Details: *As a collector's item, it still retains value.

Photo Credit: Apple Computer, Inc.

Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.

None None
Details: N/A
1 1 (DB-25)
Details: N/A
None 2*
Details: *Two Geoport serial ports standard (one printer, one modem).
1 (RJ-11) None
Details: Internal 36.6k modem standard.
1* None
Details: *S-video in onboard.
1 (PlainTalk) None
Details: 16-bit mono sound input.
1 (16-Bit Stereo) 1 (Front-Mounted)
Details: N/A
1 None
Details: N/A
1 N/A
Details: 90V-130V or 180V-264V AC, 47-63 Hz Frequency, 140 Max Watts.

Icon Credit: Apple Computer, Inc.

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